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    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1,maximum-scale=1,user-scalable=no"><meta name="format-detection" content="telephone=no">
    <title>Observe demo</title>
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<body>
    <p>响应式 demo</p>

    <!-- <script src="./observe.js"></script> -->
    <script src="./proxy-observe.js"></script>
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